When I make the width of the dropdown menu greater than 340 px, I start seeing the part of grey icons of a man, dollar sign and the equal sign on the left side. I identified the image as a part of wordpress/wp-content/themes/graphene/images/sprite_master.png. The greater the width, the more of the image is exposed. Unfortunately I can't keep it this way for a long time.
The web site URL is http://www.nautilus-intl.com
How can I troubleshoot this problem?